Demonic quill
These look like they can be attached to a slayer helmet.
140,000gp
125,003gp
14,997gp
+12,197gp
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—
Price history
1 points · hover for detail
- 30D low
- 125,003
- 30D high
- 140,000
- Volatility
- 11.3%
Flip calculator
Includes the 2% Grand Exchange tax
+12,197gp
+12,197 per item · +9.76% ROI
- Capital required
- 125,003 gp
- Gross revenue
- 140,000 gp
- GE tax (2%, 2,800/item)
- − 2,800 gp
- Break-even sell
- 127,554 gp
Item data
- High alchemy
- 0 gp
- Low alchemy
- 0 gp
- Stack / note
- Not stackable · not noteable
About Demonic quill
The Demonic quill is a members-only item in Old School RuneScape.
"These look like they can be attached to a slayer helmet"
Over the last 30 days it traded between 130,736 and 159,779 gp on the Grand Exchange, averaging 145,302 gp. About 132 units changed hands per day. The price is down 1.3% across that window. Selling one at the average price costs 2,906 gp in Grand Exchange tax.
How to get Demonic quill
Only Leagues Reward Shop sells Demonic quill.
Sold in shops
| Shop | Price | Stock |
|---|---|---|
| Leagues Reward Shop | 3,000 League Points | ∞ |
Demonic quill price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 144,425 | 130,736 | 159,779 | 1,752 |
| September 2026 | 144,161 | 123,988 | 163,693 | 3,909 |
| August 2026 | 165,211 | 135,369 | 197,449 | 8,615 |
| July 2026 | 186,648 | 163,772 | 218,992 | 22,517 |
| June 202620d | 424,787 | 258,108 | 653,524 | 20,118 |
Across 5 months of recorded prices Demonic quill ranged from 123,988 gp in September 2026 to 653,524 gp in June 2026, measured over 124 trading days.
The 30-day average of 145,302 gp sits in the lower third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.